#include<bits/stdc++.h>
using namespace std;
int n;
int r[400005];
int main(){
	freopen("duel.in","r",stdin);
	freopen("duel.out","w",stdout);
    cin>>n;
    for(int i=1;i<=n;i++){
        int x;
        cin>>x;
        r[x]++;
    }
    int maxx=0;
    for(int i=1;i<=114514;i++){
        maxx=max(maxx,r[i]);
    }
    cout<<maxx<<endl;
    return 0;
}
